Salon da kuma tsarin da planarian

White Planaria - m halitta da ke iya rayuwa ba kawai a cikin sabo da ruwa, amma kuma a gishiri da ruwa. Gabatar irin lebur tsutsa ba ya cutar da wani dabbobi ko mutane. Duk da haka, wannan ya kasance ma da dama a cikin category na da amfani kwayoyin. Mene ne Planaria? Features na tsarin da flatworm la'akari da kara.

Mene ne Planaria?

A sabo da ruwa, a kasa, a karkashin duwatsu da kuma driftwood iya samun dada halitta kamar yadda wani lebur fari tsutsa da translucent jiki tsari. Masana kimiyya koma zuwa irin wannan kwayoyin m category na parasites.

Gani a planarians jiki saman ne tsakaitã da kuma madubi juna. Duk da mummunan suna da parasitic flatworms, wata dabba ba matsayi wani hadari ga sauran halittu. Kwararru sanyã PLANAR da yara, wanda ciyar a kan sauki gudanar da mahadi, kananan crustaceans, kifi soya.

A waje tsarin da planarian

Planaria yana bipolar jiki. Dama gefen madubi ana positioned dangi zuwa hagu. Tasari delimiting line gudanar tare da dukan jiki. Irin wannan waje tsarin fari planarian damar ta zuwa rayuwa a jikin ruwa ba kawai, amma kuma ƙasar.

Flatworm jiki tsawon shi ne kasa da biyu santimita. A kauri iya zama har zuwa 5 mm. A gaban na jiki ne musamman planaria tsawo, inda tactile tentacles. A baya na tsutsa quntata da ɗan wasa a karshen. A kan surface na jiki shi ne shirya ake kira cilia, wanda na taimaka wa hijirar motsi kasancewa a cikin sarari.

A ciki tsarin da planarian

Planaria yana da wadannan ciki tsarin:

1. Murdede jakar kwai - takamaiman zaruruwa cewa mika fadin dukan jiki. Lokacin da su rage flatworm tsawo. A baya da ciki na dabba suna da alaka da a tsaye tsoka zaruruwa.
2. Hankula - tactile Kwayoyin, guda biyu tentacles, jiki balance, m idanu da amsa zuwa ga haske.
3. Juyayi tsarin - nodes a cikin wani tari na rabe, da jijiya rassan.
4. Excretory tsarin - branched tubules cewa Alhlulbaiti dukan jiki kasancewa.
5. Narkewa kamar tsarin - takamaiman epithelial Kwayoyin, wanda ba dama flatworms kama ganima. Ga abinci ci gana retractable SIP. Abinci da aka narkewar a guda Layer hanjinsu. Ya tõzarta dakatar da waje, wucewa da baya, ta bakin.

Yadda Planaria motsa?

Saboda haka za mu dubi tsarin da planarian. Yanzu bari mu ga yadda za a motsa wannan m dabba.

Planaria rarrafe a karkashin ruwa, da motsi ta hanyar da daskararrun abubuwa. Flatworm motsa sosai smoothly, a ko'ina da kuma sannu a hankali. Neman a planarians a cikin akwatin kifaye, za ka iya zaton cewa dabba yin iyo a cikin ruwa effortlessly. A gaskiya, a jikin tsutsa ne mai yawa ganuwa ga mutum ido motsi cilia.

Daga cikin abubuwan, planarians secrete takamaiman gamsai, via wanda waƙoƙi suna aza a kan abubuwa ga maimaita motsi. Kananan planarians ne iya iyo, yin filafili-kamar cilia motsi.

hanyar rayuwa

Planarians ne aiki da dare. Flatworm boyewa karkashin duwatsun, driftwood, karkashin ruwa itãce.

Kasancewarka Bears da hatsari ga shellfish. Planarian samun cikin da miciwa, wadda take kaiwa zuwa wani sauka a hankali halakar da mollusk.

A kan aiwatar da rai planarians nuna gamsai cewa ta kumbura a ruwa, kafa irin yanar gizo. Tare da wannan kasancewarsa ya wajaba su m ganima.

ci gaba

M dabba, duk da munasaba da category na parasitic flatworms alaƙa da sauran kwayoyin. Ga ci gaban planarians ba ya bukatar tsaka-tsaki, ko kuma tabbatacce Runduna. A bambanci, kusantar dangi na wannan halitta, kamar sarkar da flukes, parasites a dabbobi da jikin mutum, ba tare da wannan, ba tare da damar ci gaba da kuma haifuwa.

haifuwa

Planaria ne classified as dauke da lalurar mata. Domin ana halin da mahara hanyoyin da haifuwa:

1. Division - a farko na jima'i aiki lokaci flatworm jiki exfoliates. A adult mutum ne a hankali ya kasu kashi da dama sassa. Bayan wucewa wasu lokaci a duka biyu halves kafa sunadaran zama dole ga al'ada rayuwa. A sakamakon irin wannan sauki jan daya m canza zuwa wasu high-sa samfurori.
2. Jima'i hanya - don girma Planaria kayansa mãsu qwai a kan substrate hayayyafa. Ga hadi masonry flatworms 'yan lokacin da taba jikinsu. Saboda haka, sakamakon fili na mace da namiji gametes kafa zygote. Domin shi ne kafa rafta inda qwai ana adana har su gama maturing. Yawanci, fitowan da yawa na yara planarian dauki biyu zuwa makonni uku.

ban sha'awa facts

Simple tsarin planarian gudunmawarsu ga m survivability. flatworm jiki mallaka regenerative damar iya yin komai. Ko bayan rabuwa daga jiki na shugaban a wurinsa hankali tsiro sabon. Idan muka raba adult cikin mutum guda, a kan lokaci, wanda zai iya mai da asalin kwayoyin. Wannan yanayin na taimaka wa rayuwa planarians a cikin mafi m yanayi.

A takamaiman tsarin da planarian sa shi yin tsayayya m muhalli dalilai. Alal misali, lokacin da kasa oxygen for numfasawa, zazzabi ƙaruwa, da abu ya shiga cikin m form. Daga baya a kan planarian iya da kansa karya up cikin raba guda. Recent sake halitta a karkashin sharadi gwargwado.

Planarians ne musamman m ga m ganima. Tare da rashin abinci a cikin mazauninsu flatworms jin gina jiki a wani babba nesa. A gabansa abinci, planarians mazauna fito daga kansa mafaka da kuma ciyar da daruruwan motsi a kan kandami zuwa wani wuri inda akwai mai kama.

Da abun ciki na planarians a aquariums

Duk da m tsarin da planarian, softness waje marufai, wannan halitta za a iya kiyaye a cikin wani akwatin kifaye. Kuma flatworms ba su iya cutar da sauran mazaunan wani wucin gadi kandami. Kamar yadda muka gani a sama, Planaria Highlights da yawa na rayuwa a cikin tsari wajen m gamsai. Saboda haka, ko da wani babban kifi, irin wanda yake ba ya buga da tabo. Karami da yara, wanda shi ne shugaban su kai farmaki da planarians, ya wajaba a wani m abu da kuma suna hana motsi, yayin da zama a cikin wani shanyayyen jihar.

Planaria a cikin akwatin kifaye ba ya bukatar musamman abinci. Yana ciyarwa a kan data kasance kayayyakin da sauran dabbobi da sharar gida, rubabben, barbashi matattu shuke-shuke.

a ƙarshe

Saboda haka za mu dubi ciki da kuma na waje tsarin flatworms. Planaria saboda su hanyarsa ta rayuwa ne a m m. A tsawon rayuwar wannan flatworms ba bukatar a rundunar. Ba kamar takwarorinsu parasitic wakilta kasancewa iya forage a kan nasu a cikin halitta mazauninsu.